In a hit and run investigation, which of the following is NOT considered a primary identifier?

In a hit and run investigation, primary identifiers are crucial for accurately identifying the vehicle involved in the incident. License numbers stand out as a significant primary identifier, as they provide specific registration details linked to the vehicle. Vehicle color is also a critical identifier, often serving as a quick visual cue during identification. Driver's personal information, such as name and contact details, is important for connecting the driver to the vehicle involved in the incident.

While physical evidence is essential in an investigation, it does not serve as a primary identifier in the same way. Physical evidence might include things like fragments of the vehicle, paint left at the scene, or other clues that could aid in the investigation. However, it lacks the direct, specific attributes necessary to identify a vehicle or driver on its own, thereby placing it outside the category of primary identifiers. Instead, physical evidence supports the investigation and confirms the primary identifiers but isn't a core element for quickly identifying the participants in a hit and run.